Securities Investments in continuous unrealized loss position (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	$ 107,171	$ 41,246
Gross Unrealized Losses, Less than Twelve Months	(4,541)	(442)
Fair Value, Twelve Months or Greater	19,426	9,575
Gross Unrealized Losses, Twelve Months or Greater	(878)	(713)
Fair Value, Total	126,597	50,821
Gross Unrealized Losses, Total	(5,419)	(1,155)
U.S. government agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	10,218	3,850
Gross Unrealized Losses, Less than Twelve Months	(273)	(28)
Fair Value, Twelve Months or Greater	1,416	16
Gross Unrealized Losses, Twelve Months or Greater	(59)	0
Fair Value, Total	11,634	3,866
Gross Unrealized Losses, Total	(332)	(28)
Obligations of states and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	24,568	6,966
Gross Unrealized Losses, Less than Twelve Months	(2,539)	(105)
Fair Value, Twelve Months or Greater	1,798	0
Gross Unrealized Losses, Twelve Months or Greater	(210)	0
Fair Value, Total	26,366	6,966
Gross Unrealized Losses, Total	(2,749)	(105)
Mortgage-backed securities, Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	50,048	24,344
Gross Unrealized Losses, Less than Twelve Months	(1,264)	(234)
Fair Value, Twelve Months or Greater	8,228	1,241
Gross Unrealized Losses, Twelve Months or Greater	(360)	(46)
Fair Value, Total	58,276	25,585
Gross Unrealized Losses, Total	(1,624)	(280)
Mortgage-backed securities, Non-agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	14,505	3,295
Gross Unrealized Losses, Less than Twelve Months	(152)	(18)
Fair Value, Twelve Months or Greater	1,351	0
Gross Unrealized Losses, Twelve Months or Greater	(59)	0
Fair Value, Total	15,856	3,295
Gross Unrealized Losses, Total	(211)	(18)
Other Asset Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	1,585	2,791
Gross Unrealized Losses, Less than Twelve Months	(39)	(57)
Fair Value, Twelve Months or Greater	2,187	1,418
Gross Unrealized Losses, Twelve Months or Greater	(136)	(28)
Fair Value, Total	3,772	4,209
Gross Unrealized Losses, Total	(175)	(85)
Corporate preferred stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	0	0
Gross Unrealized Losses, Less than Twelve Months	0	0
Fair Value, Twelve Months or Greater	0	33
Gross Unrealized Losses, Twelve Months or Greater	0	(6)
Fair Value, Total	0	33
Gross Unrealized Losses, Total	0	(6)
Corporate securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than Twelve Months	6,247	0
Gross Unrealized Losses, Less than Twelve Months	(274)	0
Fair Value, Twelve Months or Greater	4,446	6,867
Gross Unrealized Losses, Twelve Months or Greater	(54)	(633)
Fair Value, Total	10,693	6,867
Gross Unrealized Losses, Total	$ (328)	$ (633)